FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * KING LUTHER CAPITAL MANAGEMENT CORP   2. Issuer Name and Ticker or Trading Symbol LAWSON PRODUCTS INC/NEW/DE/ [LAWS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 301 COMMERCE SUITE 1600,  3. Date of Earliest Transaction (Month/Day/Year) 03/06/2018 (Street) FORT WORTH, TX 76102 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/06/2018   P   120,000 A $ 24.9996 2,574,202 I See footnotes (1) (2) (3) (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KING LUTHER CAPITAL MANAGEMENT CORP 301 COMMERCE SUITE 1600 FORT WORTH, TX 76102		X
LKCM Private Discipline Master Fund, SPC C/O LKCM PRIVATE DISCIPLINE MANAGEMENT, 301 COMMERCE STREET, SUITE 1600 FORT WORTH, TX 76102		X
LKCM Investment Partnership, L.P. 301 COMMERCE STREET SUITE 1600 FORT WORTH, TX 76102		X
LKCM Micro-Cap Partnership, L.P. 301 COMMERCE STREET SUITE 1600 FORT WORTH, TX 76102		X
LKCM Core Discipline, L.P. 301 COMMERCE STREET, SUITE 1600 FORT WORTH, TX 76102		X
LKCM Headwater Investments II, L.P. 301 COMMERCE STREET SUITE 1600 FORT WORTH, TX 76102		X
King Luther Jr 301 COMMERCE STREET, SUITE 1600 FORT WORTH, TX 76102		X
King John Bryan 301 COMMERCE STREET SUITE 1600 FORT WORTH, TX 76102	X	X

Signatures

J. Bryan King, for Luther King Capital Management Corporation		03/07/2018
**Signature of Reporting Person		Date
J. Bryan King, for LKCM Private Discipline Master Fund, SPC		03/07/2018
**Signature of Reporting Person		Date
J. Luther King, Jr., for LKCM Investment Partnership, L.P.		03/07/2018
**Signature of Reporting Person		Date
J. Bryan King, for LKCM Micro-Cap Partnership, L.P.		03/07/2018
**Signature of Reporting Person		Date
J. Bryan King, for LKCM Core Discipline, L.P.		03/07/2018
**Signature of Reporting Person		Date
J. Bryan King, for LKCM Headwater Investments II, L.P.		03/07/2018
**Signature of Reporting Person		Date
J. Luther King, Jr.		03/07/2018
**Signature of Reporting Person		Date
J. Bryan King		03/07/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This Form 4 is filed by Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC (PDP), LKCM Investment Partnership, L.P. (LIP), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Core Discipline, L.P. (Core), LKCM Headwater Investments II, L.P. (HW), J. Luther King, Jr. and J. Bryan King (Reporting Persons). LKCM Private Discipline Management, L.P. holds the management shares of PDP, and LKCM Alternative Management, LLC (PDP GP) is its general partner. LKCM Investment Partnership GP, LLC (LIP GP) is the general partner of LIP. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM Headwater Investments II GP, L.P. (HW GP) is the general partner of HW.
(2)	LKCM is the investment manager for PDP, LIP, Micro, Core and HW. J. Luther King, Jr. is a controlling shareholder or member, as applicable, of LKCM and LIP GP. J. Bryan King is a controlling member of HW GP and a director of the issuer. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.
(3)	Includes (i) 1,689,358 shares held by PDP, (ii) 250,000 shares held by LIP, (iii) 26,102 shares held by Micro, (iv) 10,128 shares held by Core, (v) 592,326 shares held by HW, (vi) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment adviser, and (vii) 3,788 restricted shares held by J. Bryan King.
(4)	Each of the Reporting Persons expressly disclaims membership in a group under the Securities Exchange Act of 1934, as amended, with respect to the securities reported herein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is a member of such a group. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein, except to the extent of its pecuniary interest therein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is the beneficial owner of such securities for purposes of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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